Home / 162,465.60-243,495.44-78,210.10

Finding the Fourth Proportional to 162,465.60, 243,495.44 and 78,210.10

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Solution

The fourth proportional to 162,465.60, 243,495.44 and 78,210.10 is: 117,217.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,465.60 : 243,495.44 = 78,210.10 : x
  2. Step 2: Convert to fraction form
    162,465.60/243,495.44 = 78,210.10/x
  3. Step 3: Cross multiply
    162,465.60x = 243,495.44 × 78,210.10
  4. Step 4: Simplify right side
    162,465.60x = 19,043,802,711.94
  5. Step 5: Solve for x
    x = 19,043,802,711.94/162,465.60
  6. Step 6: Final answer
    x = 117,217.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.